Checklists for software errors, setup, and tool workflows.

1. Reproduce

2. Isolate

3. Apply

4. Verify

Latest checklists

If Command Prompt (cmd.exe) opens and closes before you can type anything, it's usually caused by...

After a Windows upgrade, you might see an error saying the update version doesn't match your syst...

You click 'Check for updates' and see 'Downloading 0%' for minutes or hours. This is a common fru...

If Outlook crashes or shows error 0x80004005 when launching or performing an act...

When you see 'Microsoft Store service unavailable' while trying to open or update an app, it ofte...

When you see a Windows activation error that mentions a proxy, it usually means the activation cl...